package com.itheima_32;

import java.util.Calendar;
import java.util.Scanner;

public class CalendarTest {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入年份");

        while (sc.hasNext()) {
            int year = sc.nextInt();
            Calendar c = Calendar.getInstance();
            c.set(year, 2, 1);
            c.add(Calendar.DATE, -1);
            int date = c.get(Calendar.DATE);
            System.out.println(year + "年2月份有" + date + "天");
        }
    }
}
